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不知道你是什么电动工具,UL745-1分Class A, Class E, Class B, Class F。其中Class A和Class E可以为given in the following examples。 . z# e4 o1 v0 B! e0 ?! w, x
Examples of Class A material are:5 P# e" j& A7 d% C4 j s
– impregnated cotton, silk, artificial silk and paper;/ A( |5 x+ w2 T* X T# `
– enamels based on oleo- or polyamide resins. r3 w1 O9 S; v- K9 @' D
4 _5 O8 _& |, w" aExamples of Class E material are:4 A9 s3 e' ?' s& w+ w' T" ?
– moldings with cellulose fillers, cotton fabric laminates and paper laminates, bonded with melamineformaldehyde,. u7 g$ j! t- _& o } D u) O
phenol-formaldehyde or phenol-furfural resins;
& O" J. Q( T+ K. ]; p' |1 F– cross-linked polyester resins, cellulose triacetate film, polyethylene terephthalate films;+ ^& J3 N7 y* D
– varnished polyethylene terephthalate textile bonded with oil-modified alkyd resin varnish;0 Z' g( N' ]7 G" p/ W3 |; I
– enamels based on polyvinyl formal, polyurethane or epoxy resins.: v% g! u1 K6 ~
& H* }; S) L- Q! d ~) G' J4 G% L但是Class B and F Insulation System必须满足UL1446。' W# ]" x8 z/ T3 p
如果没有UL1446认证,按Class E也只能做到90K。
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T1 i) K- c- h( {2 |" O还有个例外就是:
2 Q2 g q& M k# c6 c4 h- \2 v5 JFor totally enclosed motors the temperature rise limits for Class A, Class E, and Class B may be increased by 5°C。; w- `5 ^ Y: V& S1 g' |
* t2 _5 @$ G" F* Q7 U* ]请对照确定是哪种绝缘等级。 |
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